What happens if the CPU fan doesn t turn after booting?

Is it that it doesn't rotate until it crashes, and this phenomenon directly changes the fan.

Restart the CPU and it will spin up" I don't understand, it's to restart the "fan" and it will spin up, if so, take a look at the CPU fan, if you don't do it yourself during the warranty period, remove the fan and check, the fan shaft and sleeve are not seriously worn, you can disassemble the shaft and sleeve from the back (there is a circlip) (note: there is a fan that is disposable, you can't disassemble it, you can use a needle in the center of the back of the fan to make an eye OK) Add some oil (sewing machine oil or clock oil) and then install it as it is. If the wear is serious, take this fan as an example to buy one in the computer city, the original factory is estimated to be unable to buy, even if you buy it, it may be fake, as long as the fan size and the shape of the wire plug are the same, go home and install it on the computer.

Do more to carry forward the DIY spirit, and you will be invincible after a long time.

My CPU fans have been dismantled....n back (5 years), I've been using it this way,

Disassemble the case, check whether the fan wire and the motherboard socket are loose, and replug it in, if not, use a multimeter to test whether the fan resistance is broken down, and the fan is marked with a resistance value. If it's broken, replace it, it's not expensive.

It is recommended that you replace the fan with a new one, if this situation still occurs, it means that there is a problem with the relevant circuit of the motherboard, please send it for repair.

Clean up the fan, if it doesn't work, change it, it's not expensive, it's about thirty, and it's been a long time to make something wrong.

1: Check the plug of the fan cable.

2: Replace the fan with a new one.

If it doesn't work, there can be a jack on the motherboard that is out of power, generally there are 2 holes on the motherboard, and you can plug in another one.

However, in this case, the fan is the most problematic.

It may be that the fan plug is in poor contact.

1: Check the plug of the fan cable.

2: Replace the fan with a new one.

3: If none of the above works, repair the motherboard.

Categories: Computer, Networking, >> Hardware.

Problem description: My computer is quite old, 128M memory, Bensan's CPU, has been working stably. But a month ago, I bought 256 SD memory, and it was good to use it for half a month, but when it started after half a month, it often didn't light up, and I found that the CPU fan didn't turn. A few more times, maybe one time will be fine, but it's very unstable.

Recently, it has become more frequent. Please teach with high fingers. Thank you!

Analysis: It's not a fan problem, it may be a motherboard problem, if you can turn on the computer, if the fan doesn't rotate, it may be that the fan is broken, for example, the fan shaft has no lubricating oil and the dust is stuck, the last reliable way is to measure the voltage of the two feet of the fan, if there is that, the fan is broken, if not, that's.

There is a problem with the motherboard.

What you said about not lighting up is not the host light not lit, it may be that the self-test fails, because the fan is also tested by the computer, and if the test fails, it may not light up. Sometimes it can light up to indicate that your fan is not in good contact.

But there are a lot of problems in general, at least one part of your motherboard is in contact with it.